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P Baron Door Pump Intermittent

ABS Full Member
Posts: 6

I've got a 58P with an intermittent door pressurization light. I'd like to have someone take a look at it. Any ideas of common causes and who within a 60 to 90 minute flight of Asheville NC would be good to look at it?

We have a shop on the field at KAVL, but they don't have much P Baron experience.

Also needs a heater blower motor.

Model: Baron 58P
Posted 4/4/2019 - 1 year ago
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ABS Full Member
Posts: 346

With most of the P-barons, the low door pressure light comes on with the door seal pump, which is normally activated by a pressure switch (pressure below 12 lbs). I would suspect there is a leak in either the seals (front or rear door) or the piping. If you forward the serial number of your aircraft, I can look up the wiring diagram for your aircraft. I suspect, however, you have an air leak somewhere.
As for heater blower motors, Harold Haskins (334-983-5185) or C & D Airmotive (616-695-7496) could supply what you need.

Posted 4/4/2019 - 1 year ago
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ABS Full Member
Posts: 6

SN is TJ-445

Those diagrams would be very helpful. Thanks!

Posted 4/5/2019 - 1 year ago
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ABS Full Member
Posts: 346

My apologies for being so late in responding. The drawings for the door seal pump are attached.

Annunciator drawing.jpg - 245.7 KB

Posted 4/26/2019 - 1 year ago
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ABS Full Member
Posts: 324

The rear door seal is static, not pressurized by the front seal pump.

Posted 4/27/2019 - 1 year ago
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ABS Full Member
Posts: 1

any suggestions on where I can get a new door seal pump or have one rebuilt (if that's possible)

Posted 9/14/2019 - 1 year ago
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P Baron Door Pump Intermittent